The Edmond Sun

Features

January 10, 2013

Slate: What's up with 'crazy eyes'?

For the first time, police officers on Monday gave a public moment-by-moment account of accused Aurora shooter James Holmes' arrest, as part of a hearing that touched on whether Holmes is mentally fit to stand trial. Officer Jason Oviatt described Holmes as "very relaxed" after the shooting, noting that Holmes had extremely dilated pupils. Are dilated pupils a sign of mental illness?

Not a good one. Dilation of the pupils can reflect not just the lighting conditions in a room but the thoughts and feelings of a person, mentally ill or not. For example, dilated pupils can indicate sexual arousal. Psychologists sometimes study the expansion and contraction of the pupils to find an objective measure of the mind's inner processes, in something called pupillometry. This practice has been used to study everything from racial bias to sexual preference to what happens when the mind puzzles over a difficult math problem.

However, while pupillometry has been used to study aspects of mental illness, including schizophrenia, and while psychologists began observing pupil dilation among the mentally ill more than 100 years ago, pupil dilation on its own is not a good indicator of psychosis or other mental illness. Pupil dilation is regulated by the sympathetic nervous system, the part of the body that controls our fight-or-flight response. So even when psychosis causes changes in pupil dilation, such as by triggering an excited state of fear or anger, the dilation itself is identical to dilation in the non-mentally ill. Moreover, just as with sane people, the pupils return to normal once the state is over.

Dilation of the pupils can also be a side effect of using certain drugs. For example, LSD and mescaline both cause pupil dilation. Some people who suffer from mental illness may find themselves with dilated pupils caused by treatment with prescribed antipsychotic medications.

Text Only
Features
  • McCain 1 House Republicans are more active on Twitter than Democrats

    Your representative in the House is almost certainly on Twitter. Your senator definitely is. But how are they using the social network? Are Democrats more active than Republicans, or vice versa? Who has the most followers on the Hill?

    April 22, 2014 1 Photo

  • Do your genes make you procrastinate?

    Procrastinators, in my experience, like nothing better than explaining away their procrastination: General busyness, fear of failure, and simple laziness are just a handful of the excuses and theories often tossed around. Now researchers from the University of Colorado Boulder have added another option to the list: genetics.

    April 22, 2014

  • VIDEO: Moose charges snowmobile, flees after warning shot

    While snowmobiling in New England, Bob and Janis Powell of Maine were charged by a moose and caught the entire attack on camera.

    April 22, 2014

  • 6th annual run event in Guthrie to benefit Free to Live

    The sixth annual “The See Spot Run” will take place at 9 a.m. May 10 in downtown Guthrie. This 5K, 10K and 1-mile run/walk event benefits Free to Live, a nonprofit animal sanctuary located Logan County. In the past five years of this event “The See Spot Run” has welcomed more than 3,000 runners and raised $30,000 for the Free to Live Animal Sanctuary.
    “The See Spot Run” will offer all participants the opportunity to compete in either the 5K or 10K event in addition to a 1-mile “Fun Run.” Walkers and runners (both two- and four-legged) are welcome and can register directly at www.theseespotrun.com. Visit www.freetoliveok.com. Donations also can be sent to “The See Spot Run,” P.O. Box 292, Guthrie, 73044.
     

    April 21, 2014

  • Touch-A-Truck event draws families to UCO

    Edmond Electric and Edmond Vehicle Maintenance are co-hosting the Edmond Touch-A-Truck from 9 a.m. to 1 p.m. May 17 in the UCO parking lot off Second Street. Touch-A-Truck is a fundraising event that provides children of all ages with the opportunity to experience life-size vehicles and interact with community support leaders like police officers, firemen, construction workers and many more. Families will have the opportunity for a hands-on exploration of many vehicles such as Edmond’s own fire trucks and police cars, an Edmond Electric bucket truck and even a solid waste truck.
    Admission for the Touch-A-Truck event is a suggested $2 donation with the proceeds going to the Edmond HOPE Center. For more information, contact Edmond Electric at 216-7671 or email michelle.gumaer@edmondok.com.

    April 21, 2014

  • Why do wolves howl?

    Of all the myths that dog the wolf, none is more widely accepted than the idea that wolves howl at the moon. Images of wolves with their heads upturned, singing at the night sky, are as unquestioned as a goldfish's three-second memory or a dog's color-blindness (both also myths).

    April 20, 2014

  • Screen shot 2014-04-18 at 4.44.15 PM.png Paint, doodle and sketch: 3 apps for art lovers

    In the absence of a palette of watercolors and a sketchpad, these three apps can fill in as your art supplies of choice.

    April 20, 2014 1 Photo

  • Raw oysters spike U.S. rise in bacterial infections, CDC reports

    Raw oysters, so good with hot sauce, increasingly can carry something even more unsettling to the stomach: A bacteria linked to vomiting, diarrhea and pain.

    April 19, 2014

  • Crazy spring weather brings frantic pleas

    It was a bright and sunny Saturday morning. Tulips were blooming, squirrels were all a’skitter, my allergy-prone nose was running ninety-to-nothing, and workmen were in my yard leaning on rakes at $18 an hour. You might know I’d be anxious to remedy that! They were waiting to get started on spreading 60 bags of mulch, which I was belatedly on my way to reserve and pre-pay so they could pick it up and get started. Rush ... rush ... rush, and oh my aching back.

    April 19, 2014

  • Oklahoma History Center new home for Oklahoma Military Hall of Fame

    The Oklahoma Military Hall of Fame has a new home at the Oklahoma History Center. Created in 1999, the hall of fame, operated by the Oklahoma Military Heritage Foundation, has been housed the past several years at Oklahoma Christian University but there was no available space to display photographs and information on the inductees.

    April 18, 2014